Re: FileCopy overwrites the existing file

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Grzegorz,

Actually, after a thought - it is a brilliant idea and it could be done
quite effectively.


I said it, then thought about what I said...... and at this point I
realized that I had eventually come up with the idea of a commercial
product, which I was stupid enough to give away to the entire world
right on the spot.....

To be honest, I've been thinking about my own product for around 2
years without any successes (developing something that already exists
is not a great fun,don't you think), and have accidentally arrived at
something of interest. One of the guys I used to work together with
does something similar, but he does it for Linux - he writes his own
(stripped-down) Linux distribution that comes on USB keychain.

However, the problem still remains - once we are speaking about the
general-purpose commercial product, again, we get into the trouble with
hiding algorithm details (after all, who holds the attacker back from
disassembling the part that comes on the CD once he can easily purchase
it???)

In fact, I have some thoughts on the subject (one can design a
not-so-pseudo random
sequence that is defined solely by the N-bit key that the user has to
define himself, so that after N iterations the same seed may produce
2^N paths that depend solely on the key, and decoding some certain
value(s) does not help you with decoding the whole key)

Anton Bassov


Grzegorz Wróbel wrote:
anton bassov wrote:
> Certainly, you can encrypt the whole disk, thus making sure that the OS
can get booted
only from the CD with your encryption/ decryption software (which would
require this or that virtualization scheme), but how reasonable this
approach is, in practical terms (when it comes to the pure intellectual
satisfaction, such project is just brilliant - this is out of
question)????


Anton,

Actually, after a thought - it is a brilliant idea and it could be done
quite effectively. The drive would have all hardware architecture
required for encrypting/decrypting and all the non-critical software.
Now, the critical parts of an algorithm would be provided with the key
and loaded temporarily to the hardware each time you boot your machine
or connect encrypted drive. Such drive would be dedicated mini-computer.

--
Grzegorz Wróbel
http://www.4neurons.com/
677265676F727940346E6575726F6E732E636F6D

.